The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2003
Filed:
Nov. 05, 2002
Ken Kato, Shizuoka, JP;
Takahiro Iwai, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A base end of an arc tube unit is inserted in a glass tube which is previously fixed to an insulating plug unit and a shroud tube and the glass tube are then bonded and fixed to each other in such a state that an amount of insertion of the arc tube unit is regulated in order to set a dimension L between an optical reference plane Po of the insulating plug unit and the tip position of a bar-shaped electrode B of an arc tube to be a predetermined set dimension Lo. Consequently, the arc tube unit can be fixed and supported on the insulating plug unit with a simple structure in a simple process, and furthermore, it is possible to eliminate a possibility that the shroud tube might be damaged, for example, broken by the fastening force of a metal band as in the conventional art.